TK-7102H
20
Display Unit (X54-3460-20)
Ref. No. Parts name Description
IC1 IC Shift register for LED & MICBL control
Q4 Transistor Busy light switch
Q9,10 Transistor Key backlit switch
D1~4 LED Key backlit
D5 LED Monitor key light
D6 LED Programmable key light
D7~10 LED Channel key light
D11 LED Busy
D12 LED Transmit
D13 Diode Surge protection
TX-RX Unit (X57-6700-XX)
Ref. No. Parts name Description
IC31 IC Voltage regulator (8C)
IC32 IC Voltage regulator (5C)
IC33 IC Voltage regulator (5M)
IC34 IC Voltage detector reset
IC35 IC Voltage detector int
IC66 IC EEPROM
IC101 IC CPU
IC161 IC Digital potentiometer
IC201 IC MIC amplifier / IDC
IC202 IC MIC amplifier / Splatter filter
IC203 IC Buffer amplifier / SUM amplifier
/ DC amplifier / 1/2 Vcc
IC251 IC Audio filter
IC252 IC Audio amplifier
IC301 IC FM demodulation
IC401 IC PLL synthesizer
IC402 IC Divider (Hetero)
IC501 IC APC controller
Q1 FET TX AF
Q31,32 Transistor
DC switch (SB) / Active when power is on
Q33,34 Transistor DC switch (8R) / Active while RX
Q35,36 Transistor DC switch (8T) / Active while TX
Q61 Transistor Over voltage detection / Active when
PS voltage is more than 18V
Q71 Transistor Ignition / Ignition sens
Q86,87 Transistor Beat shift / Active while beat shift is on
Q201 Transistor
AF amplifier / MIC mute / Emergency MIC mute
Q202 FET Emergency MIC mute / Active when
MICEM is H
Q251 Transistor Buffer amplifier / RX audio
Q252,253
FET AF mute / Active while AFM is H
Ref. No. Parts name Description
Q254
Digital transistor
AF mute / Active while SPM is H
Q255 Transistor AF mute / Active while AMPSW is H
Q301 Transistor Noise amplifier / SQL amplifier
Q302 Transistor Buffer amplifier / 16.8MHz 3rd over tone
Q351 Transistor IF amplifier
Q352 FET Mixer
Q353 FET RF amplifier / LNA
Q354 Transistor RF BPF
Q402,403
Transistor Charge pump
Q404 Transistor RF amplifier / PLL F in
Q405 FET RX VCO
Q406 FET TX VCO
Q407 FET T/R switch
Q408 Transistor T/R switch
Q410 Transistor Buffer amplifier / Output of VCO
Q411 Transistor RF amplifier / Output of VCO
Q440 Transistor Lipple filter
Q501,502
Transistor RF amplifier / Drive stage
Q503 FET RF amplifier / Drive amplifier
Q504 FET RF amplifier / Final amplifier
D1 Diode Surge absorption / CM
D2 Diode Surge absorption / HOOK
D3 Diode Surge absorption / PTT
D4~11 Diode Surge absorption / FNC1~8
D31 Diode Reverse connection protection
D32 Poly switch Current protection
D61 Diode Over voltage detection
D201 Diode OR gate / MIC mute, AGC
D202 Diode AGC
D251 Diode Limiter
D301 Diode Detection
D302,303
Diode IF switch (Wide/Narrow)
D351~354
Varicap RF BPF tuning
D401 Diode Lipple filter
D402 Diode Voltage dropped
D403,404
Varicap RX VCO
D405,406
Varicap TX VCO
D407 Varicap Modulation
D408 Diode Lipple filter
D409 Diode RF switch (TX/RX)
D501,502
Diode Temperature compensation
D503 Diode Voltage protection
D602~605
Diode ANT switch
D606,607
Diode APC voltage detect
D608 Diode Temperature compensation
COMPONENTS DESCRIPTION